Ẃ

W with acute (majuscule: Ẃ, minuscule: ẃ) is a letter of the Latin alphabet formed by addition of the acute diacritic over the letter W. In the past, it was used in Lower Sorbian and Middle Polish. Now it is used in the Welsh orthography as an accented form of w, e. g. gẃraidd 'manly'.

Usage
The letter appeared in the alphabet made by Jan Kochanowski for Middle Polish, which was used from 16th until 18th century. It represented the palatalizated voiced labiodental fricative (vʲ) sound. It also was used in Lower Sorbian.